Nothing Special   »   [go: up one dir, main page]

EP0126596A3 - Magnetooptisches Aufnahmegerät - Google Patents

Magnetooptisches Aufnahmegerät Download PDF

Info

Publication number
EP0126596A3
EP0126596A3 EP84303194A EP84303194A EP0126596A3 EP 0126596 A3 EP0126596 A3 EP 0126596A3 EP 84303194 A EP84303194 A EP 84303194A EP 84303194 A EP84303194 A EP 84303194A EP 0126596 A3 EP0126596 A3 EP 0126596A3
Authority
EP
European Patent Office
Prior art keywords
magneto
optic
recording apparatus
optic recording
dium
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP84303194A
Other languages
English (en)
French (fr)
Other versions
EP0126596A2 (de
Inventor
Connell G. A. Neville
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Xerox Corp
Original Assignee
Xerox Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Xerox Corp filed Critical Xerox Corp
Publication of EP0126596A2 publication Critical patent/EP0126596A2/de
Publication of EP0126596A3 publication Critical patent/EP0126596A3/de
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/02—Recording, reproducing, or erasing methods; Read, write or erase circuits therefor
    • G11B5/024—Erasing
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B11/00—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor
    • G11B11/10—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field
    • G11B11/105—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field using a beam of light or a magnetic field for recording by change of magnetisation and a beam of light for reproducing, i.e. magneto-optical, e.g. light-induced thermomagnetic recording, spin magnetisation recording, Kerr or Faraday effect reproducing
    • G11B11/10502—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field using a beam of light or a magnetic field for recording by change of magnetisation and a beam of light for reproducing, i.e. magneto-optical, e.g. light-induced thermomagnetic recording, spin magnetisation recording, Kerr or Faraday effect reproducing characterised by the transducing operation to be executed
    • G11B11/10504—Recording
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B11/00—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor
    • G11B11/10—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field
    • G11B11/105—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field using a beam of light or a magnetic field for recording by change of magnetisation and a beam of light for reproducing, i.e. magneto-optical, e.g. light-induced thermomagnetic recording, spin magnetisation recording, Kerr or Faraday effect reproducing
    • G11B11/10502—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field using a beam of light or a magnetic field for recording by change of magnetisation and a beam of light for reproducing, i.e. magneto-optical, e.g. light-induced thermomagnetic recording, spin magnetisation recording, Kerr or Faraday effect reproducing characterised by the transducing operation to be executed
    • G11B11/10517—Overwriting or erasing
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B11/00—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor
    • G11B11/10—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field
    • G11B11/105—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field using a beam of light or a magnetic field for recording by change of magnetisation and a beam of light for reproducing, i.e. magneto-optical, e.g. light-induced thermomagnetic recording, spin magnetisation recording, Kerr or Faraday effect reproducing
    • G11B11/10532—Heads
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B11/00—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor
    • G11B11/10—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field
    • G11B11/105—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field using a beam of light or a magnetic field for recording by change of magnetisation and a beam of light for reproducing, i.e. magneto-optical, e.g. light-induced thermomagnetic recording, spin magnetisation recording, Kerr or Faraday effect reproducing
    • G11B11/10532—Heads
    • G11B11/10534—Heads for recording by magnetising, demagnetising or transfer of magnetisation, by radiation, e.g. for thermomagnetic recording
    • G11B11/10536—Heads for recording by magnetising, demagnetising or transfer of magnetisation, by radiation, e.g. for thermomagnetic recording using thermic beams, e.g. lasers
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B11/00—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor
    • G11B11/10—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field
    • G11B11/105—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field using a beam of light or a magnetic field for recording by change of magnetisation and a beam of light for reproducing, i.e. magneto-optical, e.g. light-induced thermomagnetic recording, spin magnetisation recording, Kerr or Faraday effect reproducing
    • G11B11/1055—Disposition or mounting of transducers relative to record carriers

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
EP84303194A 1983-05-23 1984-05-11 Magnetooptisches Aufnahmegerät Withdrawn EP0126596A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US497325 1983-05-23
US06/497,325 US4610009A (en) 1983-05-23 1983-05-23 Writing, erasing and readout system for a magneto-optic recording medium

Publications (2)

Publication Number Publication Date
EP0126596A2 EP0126596A2 (de) 1984-11-28
EP0126596A3 true EP0126596A3 (de) 1987-07-15

Family

ID=23976405

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84303194A Withdrawn EP0126596A3 (de) 1983-05-23 1984-05-11 Magnetooptisches Aufnahmegerät

Country Status (4)

Country Link
US (1) US4610009A (de)
EP (1) EP0126596A3 (de)
JP (1) JPS59221850A (de)
CA (1) CA1216940A (de)

Families Citing this family (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59217250A (ja) * 1983-05-25 1984-12-07 Matsushita Electric Ind Co Ltd 光磁気デイスク記録再生消去装置
JPH0619863B2 (ja) * 1984-06-13 1994-03-16 株式会社日立製作所 光磁気情報記憶方法及び装置
JPH06105507B2 (ja) * 1984-10-26 1994-12-21 日本電気株式会社 光磁気記録再生消去装置
JPS61114526U (de) * 1984-12-28 1986-07-19
JPH0664821B2 (ja) * 1984-12-30 1994-08-22 オリンパス光学工業株式会社 記録媒体の装着装置
JPH0630183B2 (ja) * 1985-02-20 1994-04-20 日本電気株式会社 光磁気記録再生消去方法及びその装置
JPS61196446A (ja) * 1985-02-26 1986-08-30 Sony Corp 光磁気記録装置
US4843600A (en) * 1985-09-13 1989-06-27 Canon Kabushiki Kaisha Recording head for magneto-optical information recording apparatus
JPS6278704A (ja) * 1985-10-02 1987-04-11 Olympus Optical Co Ltd 磁界発生装置
FR2588406B1 (fr) * 1985-10-04 1994-03-25 Thomson Csf Tete d'enregistrement thermomagnetique et procede de realisation
JP2570270B2 (ja) * 1986-10-08 1997-01-08 株式会社ニコン ツービームによる光磁気記録方法及び装置
JPS63131355A (ja) * 1986-11-20 1988-06-03 Ricoh Co Ltd 光磁気記録装置におけるオ−バ−ライト記録装置
JPH0727606B2 (ja) * 1986-12-11 1995-03-29 ソニー株式会社 記録型光デイスクに対する磁界印加装置
JPH0633525Y2 (ja) * 1987-04-10 1994-08-31 富士通株式会社 光磁気デイスク装置の磁界印加機構
US4965780A (en) * 1987-08-12 1990-10-23 Digital Equipment Corporation Magneto-optical data recording device using a wavelength and polarization-sensitive splitter
JPH0643854Y2 (ja) * 1988-01-25 1994-11-14 パイオニア株式会社 光磁気ディスク装置
JPH01229446A (ja) * 1988-03-09 1989-09-13 Hitachi Maxell Ltd 光磁気記録装置
GB2216710B (en) * 1988-03-14 1992-09-02 Ici Plc Optical or magneto-optical data system
US5101385A (en) * 1988-03-14 1992-03-31 Bernoulli Optical Systems Company Magneto-optical information storage system for flexible media having maximum overwrite efficiency
US4962492A (en) * 1988-04-29 1990-10-09 Laser Magnetic Storage International Company Magneto-optic data recording system, actuating device therefor and method of providing same
US4965784A (en) * 1988-05-31 1990-10-23 Sandia Corporation Method and apparatus for bistable optical information storage for erasable optical disks
JP2701403B2 (ja) * 1988-12-29 1998-01-21 ソニー株式会社 光磁気デイスク装置
US5022018A (en) * 1989-02-16 1991-06-04 Minnesota Mining And Manufacturing Company System for applying a perpendicular magnetic field to the illuminated side of a magneto-optic medium
US5189649A (en) * 1989-05-24 1993-02-23 Hewlett-Packard Company Method and apparatus for directly overwriting magnetooptic data storage media
US5159584A (en) * 1989-08-15 1992-10-27 Olympus Optical Company Limited Bias-Magnetic field generating system of photo-magnetic recording device
DE3932407A1 (de) * 1989-09-28 1991-04-18 Ibm Magneto-optisches plattenspeichersystem mit loesch- und schreib-/lese-laservorrichtung
EP0439323B1 (de) * 1990-01-23 1996-04-17 Canon Kabushiki Kaisha Magnetooptisches Aufzeichnungsgerät
US5459701A (en) * 1991-06-17 1995-10-17 Ricoh Company, Ltd. Magneto-optical recording method
US5530688A (en) * 1994-10-31 1996-06-25 International Business Machines Corporation Optical disk recording device using two modulated laser beams for recording information data

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2526358A (en) * 1946-10-18 1950-10-17 Indiana Steel Products Co Demagnetizing device
US3877784A (en) * 1973-09-20 1975-04-15 Ibm Beam address optical storage head
DE3009978A1 (de) * 1979-03-15 1980-09-18 Olympus Optical Co Vorrichtung zur magnetischen aufzeichnung und wiedergabe unter waermeeinwirkung
DE3011036A1 (de) * 1979-03-22 1980-10-02 Olympus Optical Co Vorrichtung zur magnetischen aufzeichnung und wiedergabe unter waermeeinwirkung
EP0019378A1 (de) * 1979-05-14 1980-11-26 Xerox Corporation Digitaler optischer Speicher
JPS5740761A (en) * 1980-08-26 1982-03-06 Canon Inc Photomagnetic recorder
GB2083677A (en) * 1980-07-16 1982-03-24 Matsushita Electric Ind Co Ltd Magnetooptical recording medium and a magnetooptical recording-and-reproducing device
GB2095887A (en) * 1981-03-28 1982-10-06 Kokusai Denshin Denwa Co Ltd Magneto-optical recording and reproducing system

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5753801A (ja) * 1980-09-13 1982-03-31 Canon Inc Konetsujikikirokusochi
JPS57200960A (en) * 1981-06-04 1982-12-09 Pioneer Electronic Corp Recording and reproducing method and its device
JPS5857646A (ja) * 1981-10-01 1983-04-05 Akai Electric Co Ltd 垂直磁気記録・再生方法

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2526358A (en) * 1946-10-18 1950-10-17 Indiana Steel Products Co Demagnetizing device
US3877784A (en) * 1973-09-20 1975-04-15 Ibm Beam address optical storage head
DE3009978A1 (de) * 1979-03-15 1980-09-18 Olympus Optical Co Vorrichtung zur magnetischen aufzeichnung und wiedergabe unter waermeeinwirkung
DE3011036A1 (de) * 1979-03-22 1980-10-02 Olympus Optical Co Vorrichtung zur magnetischen aufzeichnung und wiedergabe unter waermeeinwirkung
EP0019378A1 (de) * 1979-05-14 1980-11-26 Xerox Corporation Digitaler optischer Speicher
GB2083677A (en) * 1980-07-16 1982-03-24 Matsushita Electric Ind Co Ltd Magnetooptical recording medium and a magnetooptical recording-and-reproducing device
JPS5740761A (en) * 1980-08-26 1982-03-06 Canon Inc Photomagnetic recorder
GB2095887A (en) * 1981-03-28 1982-10-06 Kokusai Denshin Denwa Co Ltd Magneto-optical recording and reproducing system

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
IBM TECHNICAL DISCLOSURE BULLETIN, vol. 15, no. 9, February 1973, pages 2747-2748, Armonk, N.Y., US; W.T. FROST et al.: "Thermomagnetic recording and erasure" *
PATENTS ABSTRACTS OF JAPAN, vol. 6, no. 112 (P-124)[990], 23rd June 1982; & JP-A-57 040 761 (CANON K.K.) 06-03-1982 *

Also Published As

Publication number Publication date
US4610009A (en) 1986-09-02
CA1216940A (en) 1987-01-20
JPS59221850A (ja) 1984-12-13
EP0126596A2 (de) 1984-11-28

Similar Documents

Publication Publication Date Title
EP0126596A3 (de) Magnetooptisches Aufnahmegerät
DE3278923D1 (en) Optical recording apparatus
EP0077642A3 (en) Three beam optical memory system
JPS57147148A (en) Information reproducer with magnetooptic system
EP0405742A3 (en) Method for increasing linear bit density in magneto-optical storage media
EP0411120A4 (de) Laserwiedergabegerät.
WO1989001688A1 (en) Improved apparatus for magneto-optical recording
CA2081864A1 (en) External Magnetic Field Generation Apparatus
EP0431185A4 (en) Optical recorder
JPS57133503A (en) Optical and magnetic recorder and reproducer
EP0387047A3 (de) Magneto-optisches Aufzeichnungsgerät
EP0328354A3 (de) Optisches Informationsverarbeitungsgerät
HK62496A (en) Optical record carrier
JPS567247A (en) Information reproducing device
JPS5348504A (en) Optical recorder/reproducer
AU537421B2 (en) Video disc laser optics carriage
JPS56156814A (en) Synchronizing system for optical printer
JPS52153706A (en) Information regenerator
JPS647367A (en) Method and device for recording information
JPS6433752A (en) Optical disk device
JPS57203233A (en) Optical recorder and reproducer
JPS5250649A (en) Optical information record reproduction device
JPS57117115A (en) Digital magnetic recording method
JPS54111315A (en) Image recorder
CA2048499A1 (en) Magneto-optical recording device

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): DE FR GB NL

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): DE FR GB NL

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19880116

RIN1 Information on inventor provided before grant (corrected)

Inventor name: NEVILLE, CONNELL G. A.